Mass of a substance divided by unit volume is called

The pressure on 40ml of a gas is increased from 760mm to 800mm. find the new volumes at the same temperature.

The air outside is so warm that this snowman is melting. During melting, the water molecules (gain/lose) thermal energy. How does the motion of the molecules change during melting

How many joules of heat are needed to raise the temperature of 1.5 g of aluminum at 45°C, if the specific heat of aluminum is 0.75 J/g°C? Group of answer choices

Which of the following is an example of chemical weathering? A. Frost wedging B, Animal activity C. Plant growth D. Acid rain

Write a paragraph Looking at your patterns, how could you predict the bonding pattern of elements based on their location in the periodic table.

How does the tilt of earths axis affect the number of daylight hours and the temperature of a location on earth?

What's the ph of a 6.7*10^-5 m H + solution

The citric acid cycle (cac) is activated in the presence of oxygen, but what is the link between the cac and oxygen? pick the one best choice: a. oxygen is an allosteric activator for citrate synthase. b.

An experiment is performed on a puck on a level air hockey table, where friction is negligible. a constant horizontal force is applied to the puck, and the puck's acceleration is measured.

A plane travel for about 2.5 hours at a velocity of 1200 km/hr east. What distance did it travel?